S
M
T
W
T
F
S
31
79°
48°
1
75°
54°
2
79°
52°
3
82°
55°
4
85°
60°
5
86°
65°
6
87°
66°
7
85°
66°
8
85°
64°
9
81°
66°
10
80°
65°
11
83°
67°
12
85°
66°
13
84°
64°
14
83°
64°
15
82°
60°
16
75°
58°
17
77°
58°
18
78°
60°
19
79°
61°
20
79°
65°
21
80°
66°
22
80°
66°
23
81°
65°
24
81°
64°
25
82°
65°
26
84°
67°
27
85°
67°
28
82°
65°
29
81°
61°
30
80°
60°
1
81°
61°
2
81°
62°
3
82°
68°
4
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dayton
Dayton's June 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 52° and 68°. The average high for June is 82° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Dayton. See also: July | August | September.